Inverted gas-burner.



J. LEDERER.

INVERTED GAS BURNER. APPLICATION FILED JULY 21, 1908.

920,353. Patented May 4, 1909. 3 SHEETS-SHEET 1.

3 m-ua nto'a aatto zxq jm J. LEDERER.

INVEETED GAS BURNER.

nruunmn FILED JULY 21, 1908.

920,353. Patented May 4, 1909.

3 SHEETS-SHEET 2.

J. LEDERER.

INVEETED GAS BURNER.

APPLICATION mum JULY 21, 1903.

920,353. I ratent e g V W I i W E J W Wm JOSEPH LEDERER, OF NEW YORK, N. Y.

mvnn'rnn Gas-Bunsen.

Specification of Letters Patent.

Patented May 4, 1909.

ulpplication filed July 21, 1908. V Serial No. 444,575.

To all whom it may concern:

Be it known that I, Josnrn LEDERER, a citizenof the United States, residin in the city, county, and State of New Yor have invented certain new andfuseful Improvements in Inverted Gas-Burners, of which the following is a specification.

This invention relates to ,inverted gasburners of the Bunsen type and'has for its object the production of such an inverted gas-burnerwherein a downwardly extending duct or tube suppliesa proper mixture of gas and air to a pluralityof arms extending from a lower part of the downward duct and provided with downwardly opening orifices for the exit and ignition of the gas and air mixture andformatio upon ignition, of inverted flames adapte to render incandescent mantles for incandescent gas light, and

wherein there are other features and advanta es hereinafter described and claimed.

Ieretofore, in the construction of inverted gas-burners of the Bunsen ty e for use with.

mantles for incandescent gas- 'ght, difficulty has been experienced and in constructing such burners, .to supp ,inv a-single lamp, a gas and air mixture to more thanone downwardly opening orifice or inverted flame and to heat to incandescence two or 'more inverted mantles, separate downwardly extendin ducts, one for each mantle and each provide with holesoropenings'forthe admission of air, have generally been employed. The

construction of such orsimilar gas-burners for use with two or more inverted mantles is complicated-difficult, expensive and unsatisfactory.

It is the object of this invention to avoid.

the disadvantages referred to and to secure the simplicity of construction, efficiency of operation, and other advantages herein described.

The invention is illustrated in the accompanying drawings which form part of this specification. 4

Figure 1 is an elevation, mostly in vertical section, of an inverted gas-burner made in accordance with this invention. Fi 2 is a plan view fromabove of a horizontal section made alon the line a, bof Fig. 1. 3 is a plan view rom above of ahorizontal section made along the line 0d of Fi 1. Fig. 4 is an artly in enlarged lplan view froma ova. horizonta section, of the gas-s11 p v y regulator and an-suplply ducts shown in Fi 1.

arged elevation, most y in pass through it. upwardly from a line, preferablg, just above vertical section, of the gas-supply regulator, as-check and air-supply ducts shown in A is a. downwardly extending duct or tube which may consist of one part, but which is, preferably, made of several parts, as shown in the drawings. a

EB is a stop-cock for turning the gas on and o i C is a duct for a pilot light leading from duct A above the stopcock B.

D D are air-su ply ducts,extendin preferably, horizontally and froma part d) with which the duct A is provided. The ducts D D, as shown, supply air to the downward duct A, preferabl at a point above the point or points at whic the plurality of arms F F extend from a lower arms F Fare rovi ed with downwardly opening orifices G for the exit and ignition o the gas and air mixture and formation,

upon ignition, of inverted flames, and the.

orifices G- G are, referabl provided with mouth-pieces H made oi suitable, refractory material, such as porcelain or clay, having projecting points or ledges I adapted to receive and carry rings K or othersuitable means for-attachment of one end of the inverted mantles L L.

M is a hollow piece of suitable material, such as sheet metal, preferably in the shape of a frustum of a cone, forming a conveyer of the products of combustion, surrounding duct A, and supported by ducts D D which The conveyer M extends inverted mantles L L. The pro nets of combustion resultin from the inverted flames rise and pass 0 through the conveyor or hollow piece M and some suitable exit, such as N, with which the conveyer or an extension thereof is provided, at the upper part of the inverted gas-burner. Inasmuch as the conveyor M does not extend down so as to surround the inverted mantles L L, it does art of duct A. The

notinterfere with the supply of airto the lobe P, which globe may, as shown, be

closed at the bottom. The casing O or lobe P, with which it is provided, has ho esQ through which air is drawn and supplied to the outsides of the mantles, the products of combustion rising and passing off above through the conveyor.

R is a gas-supply regulator, shown as consisting of an accessible head on the outside of the burner and a rod, passing, preferably, horizontally through perforations of easing O, conveyer M and duct A. The perforation of duct A may be provided with .screwthreads and so may the inner end of the rod, and by reason of the screw-threads when the'rod is turned, the inner end of the rod, which tapers to a point, is made to advance into or to withdraw partially from the channel of duct A.

As shown more clearly in Figsj4 and 5, the channel of duct A is provided with a gascheck S at the place where the rod of the gassupply regulator R enters. The gas-check may consist of a iece provided with a groove or socket T inc ined toward the rod of the gas-supply regulator R and with a needle U adapted to enter and close, or artially close, the contracted art V of the channel of duct A. A spring tends to raise the needle U of the gas-check above the contracted part V of the channel of duct A, but upon turning the gas-supply regulator B so as to cause the tapered on of its rod to advance into the channel of duct A, the tapered end of the rod enters the inclined groove T and, as the rod advances, the needle is forced, against the action of the spring, toward or into the contracted part V of the channel of duct A. On

turning the gas-supply regiillator R in the opposite direction, so as'to withdraw its tapered end from the inclined roove T, the spring W presses the needle upward and away from or out of the contracted part of 40 the channel of duct A. In this manner, as is well understood, the su ply of gas to the burner may be regulated as desired.

The operation of an inverted gas-burner made in accordance with this invention is as follows On turning the sto -cock B gas enters the downwardly exten ing duct A and passes to the gas-check S where the supply of gas is regulated as described. U on assing through the contracted art Q o the channel of duct A the gas mixes with pure air drawn from the outside of the burner through the air-ducts D D. The gas and air mixture then descends through duct A until, it reaches the lower part thereof, where it is supplied to the plurality of arms F F, exten ing therefrom, and issues from the-downwardly opening orifices G G of the'arms F F, where it is ignited and forms inverted flames which heat to incandescence the inverted mantles L L. The products of combustion rise and escape through the conveyer M and pass elf through an opening, such as N, in the urner above the air-ducts D products of combustion pass off above the 66 air-ducts D D. and since the air-ducts DD 1). Since the accordance with this invention the supply of gas can be regulated conveniently, because thegas-sup 1y regulator R extends to the outside of t e casing O and is located below .the point at which the products of combustion esca e from the burner, so that it is accessible ibr manipulation and does not become highly heated. A proper supply of pure air to the burner is obtained throu h the air-ducts D D which supply air to t e downwardly extending duct A and a pluralitynf efficient inverted Bunsen flames is obtained at the orifices of the plurality of arms extending from a lower part of the downwardly extending duct A. By this sim learrangement of parts, in accordance Wit this invention, there is obtained, in a single gasburner, a plurality of efficient, inverted Bum sen flames adapted to heat to incandescence a plurality of inverted mantles without the complicated construction, expense or disadvantages heretofore experienced in the construction of burners to produce in asingle gas-lamp a number of inverted flames.

What I claim is; 1. In a gas-burner for use with mantles for incandescent gas-light, the combination of a downwardly extendin duct for gas and air, which is rovided wit an inlet for air,

' a plurality 0 arms extendin from a lower part of the downward duct an provided with downwardly opening orifices for the exit and ignition of the gas and air mixture and for mation, upon ignition, of inverted flames, and a conveyer of the products of combustion extending upwardly above said orifices beyond 'the inlet for air, substantially as described.

.2. In a gas-burner for use with mantles for-incandescent gas-light, the combination of'adownwardly extending duct for gas and air extending to the lower part ofsaid burner, a duct for air communicatin with thedownward duct, and a lurality 0 arms extending laterally from a ower part of the downward duct and provided with downwardly o ening orifices for the exit and ignition of the gas and air mixture and formation, u on ignition of inverted flames, substantia y as descri ed.

3. In a gas-burner for use with mantles for incandescent gas-light, the combination of a downwardly extending duct for gas and 130 air extending to the lower part of said burner, a lurality of ducts for air communicating wit h the downward duct, and a plurality of arms extending laterally from a lower part of the downward duct'and provided with downwardly opening orifices for the exit and ignition of the gas and air mix ture andformation, upon ignition, of invert ed flames, substantially as described.

4. In a gas-burner for use with mantles for incandescent gas-light, the combination of a downwardly extending duct for gas and air extending to the lower part of said burner, provided with an inlet for air and with a as-check above the inlet for air, and a lura ity of arms extending laterally from a ower art of the downward duct and pro vided with downwardl opening orifices for the exit and ignition o the gas and air mixture and formation, u on ignition, of inverted flames, substantially as described.

5. In a gas-burner for use with mantles for incandescent gas-light, the combination of a downwardly extending duct for gas and air extending to the lower part of said burner, a duct for air communicating with the downward duct, a gas-check above the air duct, and a lurality of arms extending laterally from a ower part of the downward duct and provided with downwardly opening orifices for the exit and ignition of the gasand tion, of inverted described. a

6. In a gas-burner for use with mantles for incandescent gas-light, the combination of a downwardl extending duct for gas and air extending o the lower part of said burner, a plurality of air-ducts communicating with the downward duct, a gas-check above the air-ducts, and a lurality of arms extending laterally from a ower part of the downward duct and provided with downwardly o ening orifices for the exit and ignition of t. 1e gas and air mixture and formation, 11 on ignition, ofinverted flames, substantia ly as described.

7. In a gas-burner for use with mantles for incandescent gas-light, the combination of a downwardly extending duct for gas and air, a conveyer surrounding the downward duct, a duct for air passing through the conveyor and communicating with the downward duct, and a plurality of arms extending from a lower part of the downward duct and provided with downwardly opening orifices for the exit and ignition oi the gas and air mixture and formation, upon. ignition, of inverted flames, substantially as described.

8. In a gas-burner for use with. mantles for incandescent gas-light, the combination of a downwardly extending duct for gas and air, a conveyer surrounding the downward duct, a plurality of ducts for air passing through the conveyor and communicating with the downair mixture and formation, upon igniflames, substantially as air, a conveyor ward duct, and a plurality of arms extending from a lower part of the downward duct and nodded wit downwardly opening orifices ior the exit and ignition of t e gas and air mixture and formation, 11 on ignition, of inverted flames, substantial y as described.

9. In a gas-burner for use with mantles for incandescent gas-light, the combination of a downwardly extending duct for gas and air, a conveyor surrounding the downward. duct, a casing provided with a globe and air-inlet holes, a duct for air passing through the easing and conveyor and communicating with the downward duct, and a plurality of arms extending from a lower part of the downward duct and provided with downwardly opening orifices for the exit and ignition of the gas and air mixture and formation, upon ignition, of inverted flames, substantially as described; 10. In a gas-burner for use with mantles for incandescent gas-light, the combination of a downwardly extending duct for gas and air, a conveyor surrounding the downward duct, a casing rovided with a globe and airinlet holes, a p urality of ducts for air passing through the casim and conveyer and communicating with the downward duct, and a plurality of arms extendingfrom a lower part of the downward duct and provided with downwardly opening orifices for the exit and ignition of the gas and air mixture and formation, u on ignition, of inverted flames, substantia ly as describe 11. In a gas-burner for use with mantles for incandescent gas-light, the combination of a downwardly extending duct for gas and surrounding the downward duct, a casing provided with a globe and airinlet holes, a duct for air passing through the casing and conveyor and communicating with the downward duct, and a pluralit of arms extending from a lower part of that ownward duct and provided with downwardly o ening orifices for the exit and ignition of t e gas and air mixture and formation, upon ignition, of inverted flames, the conveyer extending upward above the orifices, substantially as described.

12. In a gas-burner for use with mantles for incandescent gas-light, the combination of a downwardly extending duct for gas and air, a conveyor surrounding the downward duct, a casing rovided with a globe and airinlet holes, a p urality of ducts for air passing through the casing and c voyer and communicating with the (low ward duct, and a plurality of arms extending from a lower part of the downward duct and provided with downwardly opening orifices for the exit and ignition of the gas and air mixture and formation, upon ignition, of inverted flames, the cont eyer extending upward above the orifices, substantially as described. 13. In a gas-burner for use with mantles for incandescent gas-light, the combination above the duct for air, substantially as described.

14. In a gasburner for use with mantles for incandescent gas-light,the combination of a downwardly extending duct for gas and air, a conveyer surroundingthe downward duct, a plurality of ducts for air passing through the conveyer and communicating with the downward duct, and a plurality of arms extending from a lower' part of the downward duct and provided with downwardl opening orifices for the exit and ignition at the gas and air mixture-and formation, upon ignition, of inverted flames, the conveyer being provided with an outlet for the products of combustion above the ducts for air, substantiall as described.

15. In a gas urner for use with mantles for incandescent gas-light, the combination of a downwardly extending duct for gas and air, a conveyer surrounding the downward duct, a duct for air passing through the conveyer and communicating with the downward duct, a gas-su "ply regulator extending from the outside of t is conveyor to the downward duct, and a plurality of arms extendin from a lower art of the downward duct an rovided with downwardly owning orifices or the exit and ignition of t e gas and air mixture and formatio'n, u on ignition, ofinverted flames, substantial y as described.

16. In a gas-burner for use with mantles for incandescent gas-light, the combination of a downwardly extending duct for gas and air provided with a downwardly opening orifice for the exit and ignition of the gas and air mixture and formation, upon igmtion, of aninverted flame, a conveyer surrounding the downward duct, a duct for air passing throu h the conve er and communicating with t e downward duct, and a gas-s11 ply regulator extendin from the outside of the conveyor to the ownward duct, substantially as described.

17. In a gas-burner for use with mantles for incandescent gas-light, the combination of a downwardly extending duct for gas and air, a conveyor surrounding the downward duct, a duct for air passing through the conveyer and communicating with the downward duct, a gas-su ply regulator extending from the outside of t e conveyer to'the downward duct, and a plurality of arms extending from a lower 1part of the downward duct and rovided wit downwardly o ening orifices or'the exit and ignition of t e as and air mixture and formation, upon ignition, of in verted flames, the conve er being provided with an outlet for the pro( nets of combustion above the gas-supply regulator, substantially as described.

18. In a gas-burner for use with mantles for incandescent gas-light, the combination of a downwardly extending duct for gas and air provided with a downwardly o ening orifice for the exit and ignition of t e as and air mixture and formation, upon ignition, of

an inverted flame, a conveyer surrounding the downward duct, a duct for air passing through the conve er and communicating with the downwar duct, and a gas-su ply regulator extending from the outside o the conveyer to the downward duct, the conveyer bein provided with an outlet for the products 0 combustion above the gas-supply regulator.

JOSEPH LEDERER. Witnesses ANNIE J. IRVINE. Louis Hroxs. 

